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Table 1.
Relative astrometry of β Pictoris c extracted from VLTI/GRAVITY observations.
| MJD | ΔRA | ΔDec | σΔRA | σΔDec | ρ |
|---|---|---|---|---|---|
| (days) | (mas) | (mas) | (mas) | (mas) | – |
| β Pictoris b | |||||
| 58383.378 | 68.47 | 126.38 | 0.05 | 0.07 | −0.86 |
| 58796.170 | 145.51 | 248.59 | 0.11 | 0.05 | −0.85 |
| 58798.356 | 145.65 | 249.21 | 0.03 | 0.09 | −0.44 |
| 58855.065 | 155.41 | 264.33 | 0.15 | 0.29 | −0.71 |
| 58889.139 | 160.96 | 273.41 | 0.06 | 0.13 | −0.56 |
| 59221.238 | 211.59 | 352.62 | 0.02 | 0.05 | −0.10 |
| 59453.395 | 240.63 | 397.89 | 0.09 | 0.04 | −0.91 |
| β Pictoris c | |||||
| 58889.140 | −67.36 | −112.59 | 0.17 | 0.24 | −0.80 |
| 58891.065 | −67.67 | −113.20 | 0.11 | 0.19 | −0.54 |
| 58916.043 | −71.88 | −119.60 | 0.07 | 0.14 | −0.52 |
| 59220.163 | −52.00 | −80.86 | 0.20 | 0.34 | −0.26 |
Notes. The Pearson coefficient (ρ) quantifies the correlation between the RA and Dec uncertainties.
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